[The effect of physicochemical factors on the growth of Pseudomonas putida BS-2 on a medium with diethylene glycol].

Abstract

The physicochemical factors of medium have been studied for their effect on the physiological indices of growth of Pseudomonas putida BS-2 culture utilizing diethylenglycol as the only source of carbon. Action of the supraoptimal temperature on the growth process of P. putida BS-2 is accompanied by a decrease (more than twice) in economic coefficient of substrate and specific growth rate as compared with their maximal values. Dependences of specific growth rate of P. putida BS-2 in the medium with diethylenglycol on the presence of NaCl in it within the range of its concentrations from 0 to 4% and methanol in the concentration range of 0-20 g/l follow the noncompetitive inhibition equation. When NaCl concentration in the medium is more than 4%, complete separation of constructive and energy metabolism processes is observed.